APAR status
Closed as program error.
Error description
Error Message: A SEGSEGV/GPF is received when the application attempts to executed invalid code. . Stack Trace: N/A .
Local fix
The workaround for this issue is to exclude the method in which the crash is occurring through: -Xjit:exclude={*Class.method*}
Problem summary
To parts of the JIT generated code were registered as targets of dynamic patching. A jmp instruction was patched in at a target address, however a class unloading mechanism would come in an patch a -1 over the same target.
Problem conclusion
This defect will be fixed in: 6.0.0 SR9FP1 5.0.0 SR12FP5 . The issue has been resolved in the JIT and the two patching sites no longer overlap. . To obtain the fix: Install build 20110405 or later
Temporary fix
Comments
APAR Information
APAR number
IZ96935
Reported component name
JIT
Reported component ID
620700124
Reported release
600
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2011-03-21
Closed date
2011-05-25
Last modified date
2011-05-25
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Fix information
Fixed component name
JIT
Fixed component ID
620700124
Applicable component levels
R600 PSY
UP
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Document Information
Modified date:
25 May 2011